Abstract: An optical device designed to be arranged on a detector provided with an infrared sensor for increasing the angle of the field of view of the detector. The device includes a primary mirror and a secondary mirror that face each other. The primary mirror collects the infrared radiation from a wide-angle field of view to return it to the secondary mirror, which in turn reflects it back to the sensor of the infrared detector.

Abstract: A method of detecting the presence of insects, including larvae, in an indoor environment, which includes the steps of (a) obtaining a sample of volatile organic compounds (VOCs); (b) separating the sampled VOCs; (c) detecting the presence or absence of “target” VOCs from at least one category: “category 1 VOCs”—VOCs emitted independently of the support on which the insects develop and emitted only in an insect infestation VOCs, “category 2 VOCs”—VOCs emitted independently of the support but may have biological origins other than insects, and “category 3 VOCs”—VOCs emitted depending on the support and emitted only in an insect infestation; (d) calculating both an insect infestation index (“3I”) and a limit value (“VL”) based on the presence or absence of the target VOCs; and (e) comparing the “3I” and “VL” values. The environment is infested for a “3I” value strictly greater than the “VL” value.

Abstract: A method of detecting the presence of insects, including larvae, in an indoor environment, which includes the steps of (a) obtaining a sample of volatile organic compounds (VOCs); (b) separating the sampled VOCs; (c) detecting the presence or absence of “target” VOCs from at least one category: “category 1 VOCs”—VOCs emitted independently of the support on which the insects develop and emitted only in an insect infestation VOCs, “category 2 VOCs”—VOCs emitted independently of the support but may have biological origins other than insects, and “category 3 VOCs”—VOCs emitted depending on the support and emitted only in an insect infestation; (d) calculating both an insect infestation index (“3I”) and a limit value (“VL”) based on the presence or absence of the target VOCs; and (e) comparing the “3I” and “VL” values. The environment is infested for a “3I” value strictly greater than the “VL” value.

Abstract: The invention relates to a method for detecting Serpula lacrymans contamination in an internal environment, taking into account the absence and presence of VOCs produced by the metabolism of Serpula lacrymans, especially by means of the calculation of a contamination index.

Abstract: The present invention relates to a device for detecting a fungal contamination in an internal environment, to the use thereof and also to a method for detecting a fungal contamination in an internal environment using such a device.

Abstract: A method and associated device relate to the enhancement of a digital model of a building using a computer, wherein: a) the digital model is analyzed in order to identify the elements that make up the building and have specific characteristics in the building; b) construction products which have properties that match said characteristics are defined; and c) the digital model is enhanced by adding, for every element that makes up the model, data from at least one list of suitable construction products.

Abstract: A method for detecting a fungal contamination of an indoor environment by calculation of a chemical index of the fungal contamination. A sample of volatile organic compounds (VOCs) is withdrawn in indoor surroundings, and the presence or absence of certain predetermined VOCs resulting from fungal metabolism is detected.

Abstract: The invention relates to a method for detecting a fungal contamination of an indoor environment by calculation of a chemical index of the fungal contamination.

Abstract: A method for restoring a light signal from digital data defining a colorimetric coordinate of the light signal in a specific colorimetric system, comprises the step of generating a first light signal using a first light restoration unit, the step of generating a second light signal using a second light restoration unit, and the step of generating a third light signal obtained by superimposing the first and second light signals. The second light restoration unit covers a brightness dynamics less than the brightness dynamics covered by the first restoration light unit. The second light restoration unit has a brightness resolution finer than the first light restoration unit.